./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 804a6f1d000a9eac5cab22029525644887c7b13b33bf8b82b475e09952d467ca --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 19:08:53,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 19:08:53,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 19:08:53,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 19:08:53,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 19:08:53,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 19:08:53,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 19:08:53,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 19:08:53,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 19:08:53,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 19:08:53,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 19:08:53,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 19:08:53,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 19:08:53,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 19:08:53,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 19:08:53,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 19:08:53,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 19:08:53,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 19:08:53,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 19:08:53,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 19:08:53,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 19:08:53,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 19:08:53,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 19:08:53,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 19:08:53,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 19:08:53,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 19:08:53,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 19:08:53,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 19:08:53,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 19:08:53,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 19:08:53,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 19:08:53,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 19:08:53,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 19:08:53,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 19:08:53,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 19:08:53,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 19:08:53,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 19:08:53,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 19:08:53,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 19:08:53,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 19:08:53,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 19:08:53,111 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 19:08:53,147 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 19:08:53,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 19:08:53,149 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 19:08:53,149 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 19:08:53,150 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 19:08:53,150 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 19:08:53,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 19:08:53,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 19:08:53,151 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 19:08:53,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 19:08:53,152 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 19:08:53,152 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 19:08:53,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 19:08:53,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 19:08:53,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 19:08:53,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 19:08:53,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 19:08:53,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 19:08:53,154 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 19:08:53,154 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 19:08:53,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 19:08:53,154 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 19:08:53,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 19:08:53,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 19:08:53,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 19:08:53,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 19:08:53,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 19:08:53,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 19:08:53,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 19:08:53,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 19:08:53,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 19:08:53,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 19:08:53,157 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 19:08:53,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 19:08:53,157 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 19:08:53,158 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 19:08:53,158 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 19:08:53,158 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 804a6f1d000a9eac5cab22029525644887c7b13b33bf8b82b475e09952d467ca Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 19:08:53,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 19:08:53,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 19:08:53,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 19:08:53,509 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 19:08:53,510 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 19:08:53,511 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c [2023-08-29 19:08:54,599 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 19:08:54,793 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 19:08:54,794 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c [2023-08-29 19:08:54,800 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3203f0584/2914ae52dfff498a81add331bb6aae0d/FLAG5bf2fe421 [2023-08-29 19:08:54,812 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3203f0584/2914ae52dfff498a81add331bb6aae0d [2023-08-29 19:08:54,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 19:08:54,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 19:08:54,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 19:08:54,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 19:08:54,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 19:08:54,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:08:54" (1/1) ... [2023-08-29 19:08:54,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43d6d070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:08:54, skipping insertion in model container [2023-08-29 19:08:54,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:08:54" (1/1) ... [2023-08-29 19:08:54,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 19:08:54,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 19:08:55,073 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c[4837,4850] [2023-08-29 19:08:55,075 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 19:08:55,083 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 19:08:55,145 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c[4837,4850] [2023-08-29 19:08:55,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 19:08:55,158 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 19:08:55,161 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 19:08:55,167 INFO L208 MainTranslator]: Completed translation [2023-08-29 19:08:55,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:08:55 WrapperNode [2023-08-29 19:08:55,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 19:08:55,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 19:08:55,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 19:08:55,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 19:08:55,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:08:55" (1/1) ... [2023-08-29 19:08:55,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:08:55" (1/1) ... [2023-08-29 19:08:55,264 INFO L138 Inliner]: procedures = 26, calls = 115, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 668 [2023-08-29 19:08:55,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 19:08:55,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 19:08:55,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 19:08:55,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 19:08:55,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:08:55" (1/1) ... [2023-08-29 19:08:55,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:08:55" (1/1) ... [2023-08-29 19:08:55,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:08:55" (1/1) ... [2023-08-29 19:08:55,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:08:55" (1/1) ... [2023-08-29 19:08:55,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:08:55" (1/1) ... [2023-08-29 19:08:55,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:08:55" (1/1) ... [2023-08-29 19:08:55,321 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:08:55" (1/1) ... [2023-08-29 19:08:55,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:08:55" (1/1) ... [2023-08-29 19:08:55,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 19:08:55,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 19:08:55,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 19:08:55,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 19:08:55,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:08:55" (1/1) ... [2023-08-29 19:08:55,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 19:08:55,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:08:55,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 19:08:55,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 19:08:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 19:08:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 19:08:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 19:08:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 19:08:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 19:08:55,401 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 19:08:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 19:08:55,401 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 19:08:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-29 19:08:55,401 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-29 19:08:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-08-29 19:08:55,402 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-08-29 19:08:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 19:08:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-08-29 19:08:55,402 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-08-29 19:08:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-08-29 19:08:55,402 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-08-29 19:08:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2023-08-29 19:08:55,403 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2023-08-29 19:08:55,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 19:08:55,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 19:08:55,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 19:08:55,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 19:08:55,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 19:08:55,405 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 19:08:55,527 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 19:08:55,528 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 19:08:56,240 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 19:08:56,495 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 19:08:56,496 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 19:08:56,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:08:56 BoogieIcfgContainer [2023-08-29 19:08:56,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 19:08:56,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 19:08:56,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 19:08:56,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 19:08:56,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 07:08:54" (1/3) ... [2023-08-29 19:08:56,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42bef452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:08:56, skipping insertion in model container [2023-08-29 19:08:56,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:08:55" (2/3) ... [2023-08-29 19:08:56,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42bef452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:08:56, skipping insertion in model container [2023-08-29 19:08:56,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:08:56" (3/3) ... [2023-08-29 19:08:56,508 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-7.wvr.c [2023-08-29 19:08:56,515 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 19:08:56,523 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 19:08:56,524 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 101 error locations. [2023-08-29 19:08:56,524 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 19:08:56,672 INFO L144 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2023-08-29 19:08:56,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 439 places, 422 transitions, 900 flow [2023-08-29 19:08:56,898 INFO L130 PetriNetUnfolder]: 5/415 cut-off events. [2023-08-29 19:08:56,899 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-29 19:08:56,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 415 events. 5/415 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 447 event pairs, 0 based on Foata normal form. 0/309 useless extension candidates. Maximal degree in co-relation 317. Up to 2 conditions per place. [2023-08-29 19:08:56,905 INFO L82 GeneralOperation]: Start removeDead. Operand has 439 places, 422 transitions, 900 flow [2023-08-29 19:08:56,916 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 408 places, 390 transitions, 822 flow [2023-08-29 19:08:56,920 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 19:08:56,932 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 408 places, 390 transitions, 822 flow [2023-08-29 19:08:56,935 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 408 places, 390 transitions, 822 flow [2023-08-29 19:08:56,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 408 places, 390 transitions, 822 flow [2023-08-29 19:08:57,004 INFO L130 PetriNetUnfolder]: 4/390 cut-off events. [2023-08-29 19:08:57,004 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-29 19:08:57,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 390 events. 4/390 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 443 event pairs, 0 based on Foata normal form. 0/286 useless extension candidates. Maximal degree in co-relation 317. Up to 2 conditions per place. [2023-08-29 19:08:57,017 INFO L119 LiptonReduction]: Number of co-enabled transitions 24990 [2023-08-29 19:09:12,323 INFO L134 LiptonReduction]: Checked pairs total: 186959 [2023-08-29 19:09:12,323 INFO L136 LiptonReduction]: Total number of compositions: 343 [2023-08-29 19:09:12,335 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 19:09:12,340 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@42087cb9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 19:09:12,340 INFO L358 AbstractCegarLoop]: Starting to check reachability of 184 error locations. [2023-08-29 19:09:12,342 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 19:09:12,342 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 19:09:12,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:09:12,343 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 19:09:12,343 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 180 more)] === [2023-08-29 19:09:12,347 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:09:12,347 INFO L85 PathProgramCache]: Analyzing trace with hash 2131, now seen corresponding path program 1 times [2023-08-29 19:09:12,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:09:12,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274852091] [2023-08-29 19:09:12,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:09:12,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:09:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:09:12,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:09:12,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:09:12,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274852091] [2023-08-29 19:09:12,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274852091] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:09:12,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:09:12,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 19:09:12,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806217645] [2023-08-29 19:09:12,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:09:12,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 19:09:12,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:09:12,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 19:09:12,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 19:09:12,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 765 [2023-08-29 19:09:12,469 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 158 transitions, 358 flow. Second operand has 2 states, 2 states have (on average 300.5) internal successors, (601), 2 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:09:12,470 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:09:12,470 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 765 [2023-08-29 19:09:12,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:11:14,785 INFO L130 PetriNetUnfolder]: 1359377/1632811 cut-off events. [2023-08-29 19:11:14,785 INFO L131 PetriNetUnfolder]: For 67319/67319 co-relation queries the response was YES. [2023-08-29 19:11:19,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3332036 conditions, 1632811 events. 1359377/1632811 cut-off events. For 67319/67319 co-relation queries the response was YES. Maximal size of possible extension queue 23939. Compared 8623856 event pairs, 1359377 based on Foata normal form. 1/1632812 useless extension candidates. Maximal degree in co-relation 2874992. Up to 1632812 conditions per place. [2023-08-29 19:11:21,279 INFO L137 encePairwiseOnDemand]: 664/765 looper letters, 0 selfloop transitions, 0 changer transitions 57/57 dead transitions. [2023-08-29 19:11:21,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 57 transitions, 270 flow [2023-08-29 19:11:21,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 19:11:21,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 19:11:21,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 758 transitions. [2023-08-29 19:11:21,327 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4954248366013072 [2023-08-29 19:11:21,328 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 758 transitions. [2023-08-29 19:11:21,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 758 transitions. [2023-08-29 19:11:21,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:11:21,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 758 transitions. [2023-08-29 19:11:21,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 379.0) internal successors, (758), 2 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:11:21,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 765.0) internal successors, (2295), 3 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:11:21,360 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 765.0) internal successors, (2295), 3 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:11:21,375 INFO L175 Difference]: Start difference. First operand has 180 places, 158 transitions, 358 flow. Second operand 2 states and 758 transitions. [2023-08-29 19:11:21,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 57 transitions, 270 flow